Question

Using the arithmetic sequence of numbers 1,3,5,7,9..., what is d, the difference between any 2 terms?

Answer 1

`color(blue)(d=2`

Explanation:

The sequence is
`1,3,5,7,9`

The common difference `d` is the difference between any two consecutive numbers of the series.
`d_1=3-1 =2`

`d_2=5-3 =2`

`d_3=7-5 =2`

So the common difference `d` of this arithmetic sequence:
`color(blue)(d=2`